Hello all, new here and got some bad advice to keep my black water tank open constantly while hooked up at campground. Now I know otherwise. What can I do to get the contents of the tank broken up to ...
Ouch! I saw a video showing that the bag of ice trick has a very limited effect on the solids.
You might want to try filling the tank with water for a while to try to soften up the solids. If you have a built in tank sprayer try that. If not, the wands you stick down the toilet work pretty well. Kind of "power washes" the solids.